ROSIER Holding GmbH

Administration

• Maintenance and further development of existing client and server systems (Windows, VMware, and Linux)
• Maintenance and further development of existing network technologies (firewalls, switches, Wi‑Fi, and remote access systems)
• First- and second-level support for our locations (on-site and remote)
• User and permissions management in Active Directory, local and external applications
• Management and optimization of LAN/Wi‑Fi infrastructure
• Participation in the IT on-call rota after successful onboarding

IT Systems Administrator